Intraocular thin lens for anterior chamber installation

Abstract

A thin foldable intraocular implant specifically configured for installation into the anterior chamber of a phakic or pseudophakic eye has broad positioning flaps that do not apply any substantial pressure against the wall of the eye. It can be rolled for insertion through a corneal incision as small as 2.75 millimeters. The implant is constituted by a two-layered resiliently flexible membrane having a corrective layer of about 50 to 130 microns and an overall thickness of about 150 to 530 microns, that vaults the iris without contacting it. The optic is constituted by a multi-order diffractive (MOD) structure, and is made of silicone, PMMA, hydrogel or hydrophobic acrylate.

Description

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AI Technical Summary

Benefits of technology

This patent describes an innovative intraocular lens (IOL) designed for use during surgery. It has several technical benefits compared to previous devices: it is easy to install, reduces complications like glare and poor night vision, and does not require significant modification after placement. The lens consists of a thin layer made of flexible material that passes through a small opening in the cornea without applying much pressure on the surrounding tissues. It also includes a unique structure called a diffractive phase Fresnel-type lens that helps improve image quality. Additionally, the lens can have various levels of power to address common refractive errors. Overall, this new technology provides better outcomes and minimizes risk associated with ophthalmic procedures.

Problems solved by technology

The technical problem addressed in this patent text relates to developing an intraocular lens (IOL) that can be implanted without requiring a complex multi-piece design or minimizing its effectiveness due to limitations on its size. Current conventional IOLs require precise fitting based on the size of the patient's eye, leading to potential visual difficulties if there is no close fit. Additionally, current IOL designs often result in unwanted astigmatism and other distortions that cannot be corrected during production.

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